Any utility filing a rate increase shall be responsible for preparing prior to filing, and for maintaining after filing, work papers sufficient to support the filing. Any request for work papers other than those required in §§ 20:10:13:51 to 20:10:13:102, inclusive, shall be answered within 15 days by the utility. If there is a delay of over 15 days, the utility shall notify the commission and present a written explanation therefor. If the written explanation does not set forth good cause for refusal or delay in response to the request, the commission shall so notify the utility in writing. If the utility then fails to answer the request promptly, the commission may issue such order as is reasonable under the circumstances. In addition to the working paper support, the following specific material normally prepared by the filing utility, related to the test period and subsequent periods, shall be available for the commission's verification and analysis:
S.D. Admin. R. 20:10:13:49
General Authority: SDCL 49-34A-4.
Law Implemented: SDCL 49-34A-10, 49-34A-12, 49-34A-41.